move contact list json to a constructor

reduces some duplication

tests/__init__.py

@@ -716,3 +716,28 @@ def broadcast_message_json(
         'approved_by_id': approved_by_id,
         'cancelled_by_id': cancelled_by_id,
     }
+
+
+def contact_list_json(
+    *,
+    id_=None,
+    created_at='2020-06-13T09:59:56.000000Z',
+    created_by='Test User',
+    service_id,
+    original_file_name='EmergencyContactList.xls',
+    row_count=100,
+    recent_job_count=0,
+    has_jobs=True,
+    template_type='email',
+):
+    return {
+        'id': id_ or sample_uuid(),
+        'created_at': created_at,
+        'created_by': created_by,
+        'service_id': service_id,
+        'original_file_name': original_file_name,
+        'row_count': row_count,
+        'recent_job_count': recent_job_count,
+        'has_jobs': has_jobs,
+        'template_type': template_type,
+    }